The phrase "sounds threatening" is correct and usable in written English.
You can use it to describe something that appears to pose a threat. For example, "He said he would call the police if I didn't leave, which sounded threatening."
The lust for Lysistrata sounds threatening in the original play, but Mr. Jiranek's change makes it very funny.
Mayor Bloomberg vowed to fight in the courts and the bond markets -- a prospect that sounds threatening to the city's and the state's financial well-being.
If that prospect sounds threatening, Mr. Gachot, senior designer for Period, a residential design firm, points out that it can be easier to manage visual cacophony than to get swatches to match.
Earlier studies have shown that individuals with low self-esteem have more difficulties in responding to certain types of information regarding acceptance, rejection, evaluation or information that sounds threatening and blame themselves to a greater extent after a failure or mistake.
Rudeness that is worth your effort to follow up further includes swearing at you, being abusive, threatening you, revealing personal information about you in a way that sounds threatening or abusive, name-calling, defamatory comments, racist or sexist comments, etc.
Because they are fiery actors with intense and contrasting approaches, the idea of the theatrical Mr. Jackson's going nose to nose with Mr. Jones of the proud mein and military directness (even his "good morning" sounds threatening), has the promise of a welcome collaboration.
I wasn't frightened at this stage because the call didn't sound threatening.
Even the name of the microphone sounded threatening -- the MK 219.
They speak in very soft, reassuring tones and therefore don't sound threatening.
How on earth does he even make a message of congratulations sound threatening?
"April Aubade" by Sylvia Plath Plath's early poem celebrates the month for reborn love and fecundity, but manages to make it sound threatening.
